I was skeptical as most would be, but with Dr. Tim's experience and research he has be able to develop products that work. I bought the freshwater starter kit for my 55 gallon. I also bought the ammonium chloride solution. I followed his video instructions on the website, only adding the ammonium chloride when needed every 2 or 3 days. At first I didn't think much was happening because the ammonia level was going down, but the nitrites never went up. Then on the 7th day my tank was registering nitrates. It never spiked or even registered nitrite levels. I just added ammonia when it was down below 0.5 ppm. That was 2 weeks ago, and every day since then the ammonia and nitrites are zero, with the nitrates reaching about 10-20 two weeks after being cycled. The Aquacleanse and First Defense seem to do as advertised, with no problems using them. Just follow the simple instructions, and you should also be able to ach
Reviewed by: Naythan from Washington State.